Portion of fluid end



FIG. 1 is a top and back perspective view of a portion of fluid endshowing our new design;

FIG. 2 is a top and front perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a left side elevational view thereof, the right sideelevational view thereof being a mirror image of the left sideelevational view;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the FIGS. 1 through 7 are to show environment andform no part of the claimed design.

CLAIM The ornamental design for a portion of fluid end, as shown anddescribed.